Steel bar straightening machine

Abstract

The utility model discloses a steel bar straightening machine which comprises a straightening assembly and a stretching assembly, the straightening assembly comprises a side pressing plate moving in the horizontal direction and a straight pressing plate moving in the vertical direction, the stretching assembly comprises two stretching rollers, and the stretching rollers rotate to drive a steel bar drawn out and pre-straightened between the side pressing plate and the straight pressing plate to be straightened again; by arranging a side pressing plate and a straight pressing plate in the straightening assembly, bent reinforcing steel bars are limited in the horizontal direction and the vertical direction correspondingly, the pre-straightening effect on the reinforcing steel bars is achieved, and then the reinforcing steel bars in the limited state enter the position between two stretching rollers in the stretching assembly; the two stretching rollers rotate oppositely to drive the reinforcing steel bars between the two stretching rollers to be pulled out between the side pressing plates and the straight pressing plates to be pressed and limited again to achieve straightening, repeated straightening is achieved, and the straightening effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reinforcing steel bar straightening technical field, concretely relates to a reinforcing steel bar straightening machine. BACKGROUND

[0002] Reinforcing steel bar refers to the steel material for reinforced concrete and prestressed reinforced concrete, and the cross section is circular, and sometimes is square with rounded corners. Reinforcing steel bar is widely used in various building structures, especially large, heavy, light, thin-walled and high-rise building structures. Small diameter reinforcing steel bars are all coiled in a roll shape and need to be straightened for use.

[0003] The existing reinforcing steel bar straightening device adopts two mutually perpendicular discs, and there is only one groove on the outer periphery of the disc, so that the reinforcing steel bar passes through the grooves of the two discs in sequence to achieve the purpose of straightening. However, the above reinforcing steel bar straightening device has poor straightening effect, and in the prior art, a pre-straightening mechanism is also used to pre-straighten the reinforcing steel bar, but it is mostly a circular ring structure, and the reinforcing steel bar is inserted from the inside of the circular ring. However, it does not have a clamping and straightening function, and the diameter of the circular ring structure cannot be adjusted, so it cannot be applied to straightening reinforcing steel bars of different sizes. The existing reinforcing steel bar straightening device has limitations in use. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a reinforcing steel bar straightening machine to solve the problem of poor straightening effect of the reinforcing steel bar straightening device in the background art and the inability to straighten reinforcing steel bars of different sizes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technology to achieve it:

[0006] A reinforcing steel bar straightening machine, comprising a straightening assembly and a stretching assembly, the straightening assembly comprising a side pressing plate moving in the horizontal direction and a straight pressing plate moving in the vertical direction, the stretching assembly comprising two stretching rollers, the stretching rollers rotating to drive the reinforcing steel bar pre-straightened between the side pressing plate and the straight pressing plate to be straightened again.

[0007] Further, the side pressing plate is provided with two side pressing plates, the distance between the two side pressing plates is adjustable, and a straightening cavity for accommodating the reinforcing steel bar is formed between the two side pressing plates.

[0008] Further, the side pressing plate is L-shaped, the two side pressing plates are oppositely arranged, a sliding plate is fixed below the side pressing plate, the sliding plate is slidingly connected to the workbench, and the two sliding plates are threadedly connected to the two sides of the double-threaded screw.

[0009] Further, the straightening assembly further comprises a fixed plate, the fixed plate is located between the two side pressing plates and is fixedly installed on the workbench, and a straightening cavity is formed between the two side pressing plates on the two sides of the fixed plate.

[0010] Furthermore, the straight pressure plate is slidably connected in the straightening cavity, and the straight pressure plate is fixedly connected to the telescopic end of the cylinder. The cylinder is mounted on the support frame, and the support frame is fixedly installed above the worktable.

[0011] Furthermore, a protrusion is provided on the side of the straight pressure plate near the side pressure plate, and a slot matching the protrusion is provided on the side pressure plate, with the protrusion slidably connected to the slot.

[0012] Furthermore, the stretching assembly also includes a sliding frame, which includes two mounting plates arranged opposite each other, with the stretching roller rotatably connected between the two mounting plates.

[0013] Furthermore, the stretching roller has multiple sets of stretching grooves of different sizes. The stretching grooves on the upper and lower stretching rollers are arranged opposite each other, and a stretching cavity is formed between two adjacent stretching grooves to limit and straighten the reinforcing bar.

[0014] Furthermore, the sliding frame is slidably connected between the workbench and the support platform, and connecting plates are respectively provided on both sides of the mounting plate. The two connecting plates are slidably connected in the grooves opened on the sides of the workbench and the support platform.

[0015] Furthermore, support legs are provided below the worktable and support platform respectively, and the support legs are fixedly connected to each other by a base to limit the movement of the worktable and support platform.

[0016] Compared with the prior art, the comprehensive effects brought about by this utility model include:

[0017] By setting the side pressure plate and the straight pressure plate in the straightening component, the bent steel bar is limited in the horizontal and vertical directions respectively, so as to achieve the pre-straightening effect of the steel bar. Then, the steel bar in the limited state enters between the two tension rollers in the tensioning component. The two tension rollers rotate in opposite directions, driving the steel bar between them to be pulled out from between the side pressure plate and the straight pressure plate for further pressing and limiting to achieve straightening. Multiple straightening is achieved to improve the straightening effect. Attached Figure Description

[0018] Figure 1 This is a top view of the overall internal structure of an embodiment of the present utility model;

[0019] Figure 2 This is a side view of the straightening component according to an embodiment of the present invention;

[0020] Figure 3 This is a front view schematic diagram of the overall structure of an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the direct pressure plate structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0023] Figure legend: 1, side pressing plate; 2, straight pressing plate; 3, stretching roller; 4, sliding plate; 5, workbench; 6, bidirectional screw; 7, fixed plate; 8, air cylinder; 9, support frame; 10, protruding block; 11, insertion slot; 12, mounting plate; 13, support table; 14, connecting plate; 15, stretching groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0025] In this document, the orientations or position relationships indicated by terms such as "upper", "lower", "left", "right", "top", etc. are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] As shown in Figures 1 to 5 A reinforcing bar straightening machine, comprising a straightening assembly and a stretching assembly, the straightening assembly comprising a side pressing plate 1 moving in a horizontal direction and a straight pressing plate 2 moving in a vertical direction, and the stretching assembly comprising two stretching rollers 3, the stretching rollers 3 rotating to drive the reinforcing bar pre-straightened between the side pressing plate 1 and the straight pressing plate 2 to be straightened again.

[0027] By setting the side pressing plate 1 and the straight pressing plate 2 in the straightening assembly, the curved reinforcing bar is limited from horizontal and vertical directions respectively, achieving the pre-straightening effect of the reinforcing bar, and then the reinforcing bar in the limited state enters between the two stretching rollers in the stretching assembly, the two stretching rollers 3 rotate towards each other to drive the reinforcing bar between them to be extracted from between the side pressing plate 1 and the straight pressing plate 2 for re-compression and limiting to achieve straightening, achieving multiple straightening to improve the straightening effect.

[0028] In the reinforcing bar straightening machine of the present embodiment, two side pressing plates 1 are provided, and the distance between the two side pressing plates 1 is adjustable, forming a straightening cavity accommodating the reinforcing bar.

[0029] The two side pressing plates 1 with adjustable distance are set, and the distance between the two side pressing plates 1 is adjusted to adapt to the limiting correction of reinforcing bars of different thicknesses, ensuring the straightening effect of reinforcing bars of different specifications, and realizing the clamping and straightening function.

[0030] The steel bar straightening machine of the embodiment has two L-shaped side pressing plates 1 arranged oppositely, and a sliding plate 4 is fixed below the side pressing plates 1 and slidably connected to a workbench 5. The two sliding plates 4 are threadedly connected to two sides of a bidirectional screw rod 6.

[0031] Specifically, the side pressing plate 1 is L-shaped to improve the strength of the side pressing plate 1 and avoid deformation of the side pressing plate 1. The side pressing plate 1 slides on the surface of the workbench 5, the sliding plate 4 is slidably connected to a sliding groove formed in the workbench 5, the bidirectional screw rod 6 is installed in the middle of the sliding groove, one end of the bidirectional screw rod 6 is fixedly connected to the output end of a driving motor, and the other end is rotatably connected to the side wall of the workbench 5. The driving motor drives the bidirectional screw rod 6 to rotate in opposite directions to adjust the distance between the two side pressing plates 1.

[0032] Preferably, the sliding grooves are formed on both sides of the workbench 5, and the middle part of the bidirectional screw rod 6 is a light rod which is inserted into the workbench 5 and rotatably connected. The above arrangement ensures that the workbench 5 has sufficient strength to support the pre-straightening operation of the steel bar.

[0033] Further preferably, the sliding plate 4 is connected to the outer side of the L-shaped side pressing plate 1. The above arrangement allows the side in direct contact with the steel bar to shield the sliding groove, avoiding interference between the steel bar and the bidirectional screw rod 6.

[0034] In the steel bar straightening machine of the embodiment, the straightening assembly further comprises a fixed plate 7 which is located between the two side pressing plates 1 and fixedly installed on the workbench 5. The two sides of the fixed plate 7 form a straightening cavity with the side pressing plates 1.

[0035] Specifically, the fixed plate 7 is located between the two sliding grooves. The arrangement of the fixed plate 7 allows the two side pressing plates 1 to press two steel bars at the same time, so that the steel bars are clamped between the side pressing plates 1 and the fixed plate 7 for correction, improving the straightening efficiency and practicality.

[0036] In the steel bar straightening machine of the embodiment, the straight pressing plate 2 is slidably connected in the straightening cavity, and the straight pressing plate 2 is fixedly connected to the extension end of a pneumatic cylinder 8. The pneumatic cylinder 8 is arranged on a support frame 9 which is fixedly installed above the workbench 5.

[0037] Specifically, the straight pressing plate 2 is provided with two straight pressing plates 2 which are connected by a limiting plate. The limiting plate is fixedly connected to the extension end of the pneumatic cylinder 8. The extension of the pneumatic cylinder 8 drives the two straight pressing plates 2 to slide along the two side surfaces of the fixed plate 7 and insert into the straightening cavity, limiting the steel bar in the vertical direction, and cooperating with the side pressing plate 1 to straighten the steel bar.

[0038] In the steel bar straightening machine of the embodiment, the side of the straight pressing plate 2 close to the side pressing plate 1 is provided with a protrusion 10, and the side pressing plate 1 is provided with a slot 11 matched with the protrusion 10. The protrusion 10 is slidably connected to the slot 11.

[0039] Specifically, the intersection of the side pressing plate 1 and the straight pressing plate 2 is achieved by inserting the protrusion 10 into the slot 11, thereby avoiding interference caused by movement of the two, and ensuring the pressing and straightening effect in the horizontal and vertical directions; meanwhile, the protrusion 10 has a certain length, and the depth of the protrusion 10 inserted into the slot 11 corresponds to different sizes of steel bars, thereby adapting to the pressing of steel bars of various specifications, thereby realizing the pressing of steel bars of different sizes in the vertical direction and adapting to the horizontal pressing structure, and greatly improving the practicability.

[0040] In the steel bar straightening machine of the embodiment, the stretching assembly further comprises a sliding frame, and the sliding frame comprises two installation plates 12 which are oppositely arranged, and the stretching roller 3 is rotationally connected between the two installation plates 12.

[0041] The installation plate 12 is arranged to connect and fix the stretching roller 3, one end of the upper stretching roller 3 penetrates through the installation plate 12 and is connected to the output end of the motor, and the upper stretching roller 3 rotates to drive the lower stretching roller 3 to rotate while straightening the steel bar.

[0042] In the steel bar straightening machine of the embodiment, a plurality of stretching grooves 15 of different sizes are arranged on the stretching roller 3, and the stretching grooves 15 on the upper and lower stretching rollers 3 are oppositely arranged, and a stretching cavity is formed between adjacent two stretching grooves 15 to limit and straighten the steel bar.

[0043] Specifically, the stretching groove 15 is annular, the steel bar is clamped between the two oppositely arranged stretching grooves 15 to limit the steel bar, when the upper stretching roller 3 rotates, the steel bar is driven to stretch out in the stretching groove 15 by friction force to clamp and straighten the steel bar, and at the same time, the steel bar moves forward to be pulled out from the straightening cavity to further straighten the pre-straightened steel bar, thereby improving the straightening effect of the steel bar.

[0044] A plurality of stretching grooves 15 of different depths and widths are arranged to clamp and straighten steel bars of different specifications in cooperation with the straightening assembly.

[0045] Preferably, two stretching grooves 15 of different sizes are arranged respectively, and the distance between the two stretching grooves 15 matches the thickness of the fixed plate 7, so that the steel bar in the straightening cavity corresponds to the stretching groove 15, avoiding the deflection of the steel bar between the straightening assembly and the stretching assembly, and improving the straightening effect.

[0046] In the steel bar straightening machine of the embodiment, the sliding frame is slidingly connected between the workbench 5 and the support table 13, and the two sides of the installation plate 12 are respectively provided with a connecting plate 14, and the two connecting plates 14 are respectively slidingly connected in the grooves formed on the side surfaces of the workbench 5 and the support table 13.

[0047] The support table 13 is arranged to support the sliding frame and form a sliding rail between the workbench 5 and the support table 13 for the sliding frame to slide, the relative position of the stretching roller 3 and the straightening assembly is changed by adjusting the position of the connecting plate 14 in the groove on the workbench 5 and the support table 13, so that the different size stretching grooves 15 on the stretching roller 3 are aligned with the reinforcing steel bars in the straightening cavity, and the straightening of the reinforcing steel bars of different specifications is realized.

[0048] Preferably, the length of the connecting plate 14 is greater than the width of the workbench 5, when the stretching grooves 15 on both sides of the stretching roller 3 are used, the connecting plate 14 is ensured to have sufficient plug-in cooperation with the workbench 5 and the support table 13, and the stability of the stretching roller 3 is improved.

[0049] In the reinforcing steel bar straightening machine of the embodiment, support legs are arranged below the workbench 5 and the support table 13 respectively, and the support legs are fixedly connected through a base to limit the workbench 5 and the support table 13.

[0050] The support legs and the base are arranged to ensure the connection strength of the workbench 5 and the support table 13, so that the sliding frame drives the stretching roller 3 to stably slide.

[0051] In the utility model, unless another definite provision and limitation, the terms "mount", "arrange", "connect", "fix", "rotate" and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relationship, unless another definite limitation, for the ordinary skill in the art personnel, can understand the above-mentioned term in the utility model's specific meaning according to specific circumstances.

[0052] Although the embodiments of the utility model have been shown and described in detail, those skilled in the art can understand that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rebar straightening machine, characterized in that, It includes a straightening assembly and a stretching assembly. The straightening assembly includes a side pressure plate that moves in the horizontal direction and a straight pressure plate that moves in the vertical direction. The stretching assembly includes two stretching rollers. The rotation of the stretching rollers drives the pre-stretched steel bar between the side pressure plate and the straight pressure plate to be pulled out and straightened again. Two side pressure plates are provided, and the distance between the two side pressure plates is adjustable, forming a compression cavity between the two side pressure plates to accommodate the reinforcing bars; The straightening assembly also includes a fixing plate, which is located between two side pressure plates and fixedly installed on the workbench. The two sides of the fixing plate form straightening cavities with the side pressure plates respectively. The stretching assembly further includes a sliding frame, which includes mounting plates. Two mounting plates are arranged opposite each other, and the stretching roller is rotatably connected between the two mounting plates. The stretching roller has multiple sets of stretching grooves of different sizes. The stretching grooves on the upper and lower stretching rollers are arranged opposite to each other, and a stretching cavity is formed between two adjacent stretching grooves to limit and straighten the steel bar. The sliding frame is slidably connected between the workbench and the support platform. Connecting plates are provided on both sides of the mounting plate, and the two connecting plates are slidably connected in the grooves opened on the sides of the workbench and the support platform.

2. The rebar straightening machine according to claim 1, characterized in that, The side pressure plate is L-shaped, and the two side pressure plates are arranged opposite each other. A sliding plate is fixed below the side pressure plate. The sliding plate is slidably connected to the worktable, and the two sliding plates are threadedly connected to both sides of the bidirectional lead screw.

3. The rebar straightening machine according to claim 1, characterized in that, The straight pressure plate is slidably connected in the straightening cavity, and the straight pressure plate is fixedly connected to the telescopic end of the cylinder. The cylinder is mounted on the support frame, and the support frame is fixedly installed above the workbench.

4. The rebar straightening machine according to claim 3, characterized in that, The straight pressure plate has a protrusion on one side near the side pressure plate, and the side pressure plate has a slot that matches the protrusion. The protrusion and the slot are slidably connected.

5. The rebar straightening machine according to claim 1, characterized in that, Support legs are provided below the worktable and the support platform respectively, and the support legs are fixedly connected to each other by a base to limit the position of the worktable and the support platform.

Images